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一、MOS
1、全称
金属氧化物半导体
2、结构图

3、结构
NMOS管为例

Source: 源极    Drain: 漏极   统称栅极
Gate: 门极           Bulk: 衬底
4、种类与符号
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一、MOS
1、全称
金属氧化物半导体
2、结构图

3、结构
NMOS管为例

Source: 源极    Drain: 漏极   统称栅极
Gate: 门极           Bulk: 衬底
4、种类与符号
NMO...">
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一、MOS
1、全称
金属氧化物半导体
2、结构图

3、结构
NMOS管为例

Source: 源极    Drain: 漏极   统称栅极
Gate: 门极           Bulk: 衬底
4、种类与符号
NMO...">
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                                <h2>
                                    2.2 CMOS逻辑门
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                                    2023-09-22, 802 words, 4 min read
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                                        <h1 id="22-cmos">2.2 CMOS</h1>
<h2 id="一-mos">一、MOS</h2>
<h4 id="1-全称">1、全称</h4>
<p>金属氧化物半导体</p>
<h4 id="2-结构图">2、结构图</h4>
<img src="http://cos.pansis.site/202309212229401.png/abc123" alt="image-20230921222932325" style="zoom:33%;" />
<h4 id="3-结构">3、结构</h4>
<p>NMOS管为例</p>
<img src="http://cos.pansis.site/202309212230099.png/abc123" alt="image-20230921223021032" style="zoom: 33%;" />
<p>Source: 源极    Drain: 漏极   统称栅极</p>
<p>Gate: 门极           Bulk: 衬底</p>
<h4 id="4-种类与符号">4、种类与符号</h4>
<p>NMOS管<img src="http://cos.pansis.site/202309212232425.png/abc123" alt="image-20230921223226381" style="zoom: 67%;" /><img src="http://cos.pansis.site/202309212254646.png/abc123" alt="image-20230921225445585" style="zoom:60%;" /></p>
<p>NMOS管的<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>G</mi><mi>S</mi></mrow></msub><mo>&gt;</mo><mn>0</mn></mrow><annotation encoding="application/x-tex">V_{GS}&gt;0</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight">G</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">&gt;</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">0</span></span></span></span></p>
<p>PMOS管<img src="http://cos.pansis.site/202309212232459.png/abc123" alt="image-20230921223202405" style="zoom:50%;" /><img src="http://cos.pansis.site/202309212254662.png/abc123" alt="image-20230921225422602" style="zoom: 50%;" /></p>
<p>PMOS管的<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>G</mi><mi>S</mi></mrow></msub><mo>&lt;</mo><mn>0</mn></mrow><annotation encoding="application/x-tex">V_{GS}&lt;0</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight">G</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">&lt;</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">0</span></span></span></span>.</p>
<h4 id="5-工作原理">5、工作原理</h4>
<img src="http://cos.pansis.site/202309212234253.png/abc123" alt="image-20230921223432182" style="zoom:40%;" />
<p><strong>形成沟道：</strong> 当施加适当的电压于G和S之间时，栅极与通道之间的绝缘层（氧化层）下方 形成一个带电区域， 称为沟道。</p>
<p>通过沟道，原本绝缘的源极和漏极（D和S）就可以导电啦。</p>
<h4 id="6-输入输出特性">6、输入输出特性</h4>
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>G</mi><mi>S</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{GS}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight">G</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>控制最大电流，<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>D</mi><mi>S</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{DS}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight" style="margin-right:0.02778em;">D</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>主控电离</p>
<p>NMOS为例，<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>G</mi><mi>S</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{GS}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight">G</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>为正</p>
<img src="http://cos.pansis.site/202309212248534.png/abc123" alt="image-20230921224813434" style="zoom:33%;" />
<p>PMOS为例，<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>G</mi><mi>S</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{GS}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight">G</span><span class="mord mathdefault mtight" style="margin-right:0.05764em;">S</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>为负</p>
<img src="http://cos.pansis.site/202309212254806.png/abc123" alt="image-20230921225403746" style="zoom: 50%;" />
<h2 id="二-cmos反相器">二、CMOS反相器</h2>
<h4 id="1-上拉与下拉的概念">1、上拉与下拉的概念</h4>
<p>​     <img src="http://cos.pansis.site/202309212257712.png/abc123" alt="image-20230921225750666" style="zoom:33%;" /><img src="http://cos.pansis.site/202309212259490.png/abc123" alt="image-20230921225933441" style="zoom:50%;" /></p>
<p>1、 <strong>上拉：</strong> 上面的开关   <strong>下拉：</strong> 下面的开关</p>
<p>2、 <strong>我们需要互补的上拉和下拉逻辑</strong> （即下拉应在上拉“关闭”时 处于“打开”状态，反之亦然。）</p>
<p>3、 <strong>上拉的作用：</strong> 使用PMOS管，使逻辑式为真的时候接通高电平，使其输出。</p>
<p>​      <strong>下拉的作用：</strong>  使用NMOS管，使逻辑式为假的时候接通低电平，使其输出。</p>
<p>PMOS管和NMOS管的使用绝对不能颠倒。</p>
<img src="http://cos.pansis.site/202309212306307.png/abc123" alt="image-20230921230609246" style="zoom: 50%;" />
<h4 id="2-cmos反相器">2、CMOS反相器</h4>
<p>1、结构</p>
<img src="http://cos.pansis.site/202309212308886.png/abc123" alt="image-20230921230855835" style="zoom:45%;" />
<p>2、输入输出特性</p>
<img src="http://cos.pansis.site/202309212310294.png/abc123" alt="image-20230921231023248" style="zoom:50%;" />
<figure data-type="image" tabindex="1"><img src="http://cos.pansis.site/202309212313458.png/abc123" alt="image-20230921231308401" loading="lazy"></figure>
<h4 id="3-电流特性">3、电流特性</h4>
<figure data-type="image" tabindex="2"><img src="http://cos.pansis.site/202309212317442.png/abc123" alt="image-20230921231736366" loading="lazy"></figure>
<h2 id="三-cmos互补性">三、CMOS互补性</h2>
<h4 id="1-与-或-非">1、与、或、非</h4>
<p>PMOS接非，NMOS接正</p>
<p>串联为与，并联为或</p>
<p><strong>非</strong></p>
<img src="http://cos.pansis.site/202309212324425.png/abc123" alt="image-20230921232421369" style="zoom:50%;" />
<p><strong>与</strong></p>
<img src="http://cos.pansis.site/202309212324110.png/abc123" alt="image-20230921232443040" style="zoom:50%;" />
<p><strong>或</strong></p>
<img src="http://cos.pansis.site/202309212325088.png/abc123" alt="image-20230921232507024" style="zoom:50%;" />
<h4 id="2-上部与下部的互反性">2、上部与下部的互反性</h4>
<p>1、上部和下部的电路组成互反。</p>
<p>2、假设逻辑输出为<span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>F</mi></mrow><annotation encoding="application/x-tex">F</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.13889em;">F</span></span></span></span></p>
<ul>
<li>上部电路用PMOS组成，使用 <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mover accent="true"><mi>A</mi><mo stretchy="true">‾</mo></mover></mrow><annotation encoding="application/x-tex">\overline{A}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8833300000000001em;vertical-align:0em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">A</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span></span></span></span>  等非输入信号组成的逻辑为<span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>F</mi></mrow><annotation encoding="application/x-tex">F</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.13889em;">F</span></span></span></span></li>
<li>下部电路用NMOS组成，使用 <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>A</mi></mrow><annotation encoding="application/x-tex">A</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault">A</span></span></span></span> 等输入信号组成的逻辑为 <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mover accent="true"><mi>F</mi><mo stretchy="true">‾</mo></mover></mrow><annotation encoding="application/x-tex">\overline{F}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8833300000000001em;vertical-align:0em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.13889em;">F</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span></span></span></span></li>
</ul>
<p>3、例子</p>
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>Z</mi><mo>=</mo><mover accent="true"><mrow><mi>A</mi><mi>B</mi></mrow><mo stretchy="true">‾</mo></mover><mo>=</mo><mover accent="true"><mi>A</mi><mo stretchy="true">‾</mo></mover><mo>+</mo><mover accent="true"><mi>B</mi><mo stretchy="true">‾</mo></mover></mrow><annotation encoding="application/x-tex">Z=\overline{AB}=\overline{A}+\overline{B}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">Z</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.8833300000000001em;vertical-align:0em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">A</span><span class="mord mathdefault" style="margin-right:0.05017em;">B</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.9666600000000001em;vertical-align:-0.08333em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">A</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.8833300000000001em;vertical-align:0em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.05017em;">B</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span></span></span></span>  NAND</p>
<img src="http://cos.pansis.site/202309212336091.png/abc123" alt="image-20230921233620011" style="zoom:50%;" />
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>Z</mi><mo>=</mo><mover accent="true"><mrow><mi>A</mi><mo>+</mo><mi>B</mi></mrow><mo stretchy="true">‾</mo></mover><mo>=</mo><mover accent="true"><mi>A</mi><mo stretchy="true">‾</mo></mover><mover accent="true"><mi>B</mi><mo stretchy="true">‾</mo></mover></mrow><annotation encoding="application/x-tex">Z=\overline{A+B}=\overline{A} \overline{B}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">Z</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.9666600000000001em;vertical-align:-0.08333em;"></span><span class="mord overline"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">A</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mord mathdefault" style="margin-right:0.05017em;">B</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.08333em;"><span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.8833300000000001em;vertical-align:0em;"></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault">A</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span><span class="mord overline"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8833300000000001em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.05017em;">B</span></span></span><span style="top:-3.80333em;"><span class="pstrut" style="height:3em;"></span><span class="overline-line" style="border-bottom-width:0.04em;"></span></span></span></span></span></span></span></span></span> NOR</p>
<img src="http://cos.pansis.site/202309212340605.png/abc123" alt="image-20230921234005526" style="zoom: 33%;" />
<h2 id="四-非门缓冲">四、非门缓冲</h2>
<h4 id="1-部分门电路存在的问题">1、部分门电路存在的问题</h4>
<p>(1)输出电阻R受输入状态影响</p>
<p>(2)输出的高低电平受输入端数目的影响 输入端越多，<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>O</mi><mi>L</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{OL}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight" style="margin-right:0.02778em;">O</span><span class="mord mathdefault mtight">L</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>越高，<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msub><mi>V</mi><mrow><mi>O</mi><mi>H</mi></mrow></msub></mrow><annotation encoding="application/x-tex">V_{OH}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathdefault" style="margin-right:0.22222em;">V</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.5500000000000003em;margin-left:-0.22222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathdefault mtight" style="margin-right:0.02778em;">O</span><span class="mord mathdefault mtight" style="margin-right:0.08125em;">H</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>也更高</p>
<figure data-type="image" tabindex="3"><img src="http://cos.pansis.site/202309212345357.png/abc123" alt="image-20230921234515285" loading="lazy"></figure>
<h4 id="2-解决方案">2、解决方案</h4>
<p>使用带缓冲极的CMOS门（添加一个非门）</p>
<img src="http://cos.pansis.site/202309212346692.png/abc123" alt="image-20230921234646625" style="zoom:33%;" />
<h2 id="五-门电路分析">五、门电路分析</h2>
<h4 id="1-方法">1、方法</h4>
<p>分模块分析，每个模块只看上半部分或下半部分</p>
<p><img src="http://cos.pansis.site/202309212347871.png/abc123" alt="image-20230921234742784" style="zoom:50%;" /><img src="http://cos.pansis.site/202309221016098.jpg/abc123" alt="d736c99716a87bb51929c8161ce88bb" style="zoom:30%;" /></p>
<h2 id="六-漏记开路的门电路od门">六、漏记开路的门电路（OD门）</h2>
<h4 id="1-组成">1、组成</h4>
<p>在正常的逻辑中，添加NMOS管、上拉电阻、外接电源，组成OD门</p>
<p>注意T_N也会反向</p>
<figure data-type="image" tabindex="4"><img src="http://cos.pansis.site/202309221030863.png/abc123" alt="image-20230922103040745" loading="lazy"></figure>
<h4 id="2-符号">2、符号</h4>
<p>以与门的OD门为例</p>
<img src="http://cos.pansis.site/202309221032856.png/abc123" alt="image-20230922103213798" style="zoom:33%;" />
<h4 id="3-od门的作用">3、OD门的作用</h4>
<p>可将多个OD门输出并联使用，实现线与或用作电平转换、驱动器</p>
<img src="http://cos.pansis.site/202309221033088.png/abc123" alt="image-20230922103310965" style="zoom:33%;" />
<h2 id="七-cmos传输门">七、CMOS传输门</h2>
<h4 id="1-结构">1、结构</h4>
<img src="http://cos.pansis.site/202309221034231.png/abc123" alt="image-20230922103435135" style="zoom:50%;" />
<h4 id="2-功能">2、功能</h4>
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>C</mi><mo>=</mo><mn>0</mn><mo separator="true">,</mo><mi>C</mi><mi mathvariant="normal">’</mi><mo>=</mo><mn>1</mn></mrow><annotation encoding="application/x-tex">C=0,C’=1</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">C</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.8888799999999999em;vertical-align:-0.19444em;"></span><span class="mord">0</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">C</span><span class="mord">’</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">1</span></span></span></span>时，同时截止，输出<span class="katex"><span class="katex-mathml"><math><semantics><mrow><mn>0</mn></mrow><annotation encoding="application/x-tex">0</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">0</span></span></span></span></p>
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>C</mi><mo>=</mo><mn>1</mn><mo separator="true">,</mo><mi>C</mi><mi mathvariant="normal">’</mi><mo>=</mo><mn>0</mn></mrow><annotation encoding="application/x-tex">C=1,C’=0</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.68333em;vertical-align:0em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">C</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.8888799999999999em;vertical-align:-0.19444em;"></span><span class="mord">1</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord mathdefault" style="margin-right:0.07153em;">C</span><span class="mord">’</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:0.64444em;vertical-align:0em;"></span><span class="mord">0</span></span></span></span>时，同时导通，输出信号（可传递数字信号、模拟信号）</p>
<h4 id="3-应用">3、应用</h4>
<img src="http://cos.pansis.site/202309221037499.png/abc123" alt="image-20230922103728380" style="zoom:35%;" />
<img src="http://cos.pansis.site/202309221038320.png/abc123" alt="image-20230922103854133" style="zoom:33%;" />
<h2 id="八-三态输出门">八、三态输出门</h2>
<h4 id="1-三态">1、三态</h4>
<p>高电平、低电平、高阻态</p>
<h4 id="2-结构以非门为例">2、结构（以非门为例）</h4>
<img src="http://cos.pansis.site/202309221042208.png/abc123" alt="image-20230922104212032" style="zoom:33%;" />
<h4 id="3-作用">3、作用</h4>
<p>当不需要输出该模块信号时，保持高阻能使其不影响其他电路工作。</p>
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